<template>
    <div>
        <!-- 面包屑导航区 -->
        <el-breadcrumb separator="/">
            <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
            <el-breadcrumb-item>用户管理</el-breadcrumb-item>
            <el-breadcrumb-item>用户列表</el-breadcrumb-item>
        </el-breadcrumb>
        <!-- 卡片视图区域 -->
        <el-card>
            <!-- 搜索和添加区域 -->
            <el-row :gutter="20">
                <el-col :span="8">
                    <el-input placeholder="请输入搜索内容" v-model="queryInfo.query" clearable @clear="getUserList" @keyup.enter.native="getUserList">
                        <el-button slot="append" icon="el-icon-search" @click="getUserList"></el-button>
                    </el-input>
                </el-col>
                <el-col :span="4">
                    <el-button type="primary" @click="addDialogVisible=true">添加用户</el-button>
                </el-col>
            </el-row>
            <!-- 用户列表区域 -->
            <el-table :data="userlist" border strip>
                <el-table-column type="index"></el-table-column>
                <el-table-column label="姓名" prop="username"></el-table-column>
                <el-table-column label="邮箱" prop="email"></el-table-column>
                <el-table-column label="电话" prop="mobile"></el-table-column>
                <el-table-column label="角色" prop="role_name"></el-table-column>
                <el-table-column label="状态">
                    <template slot-scope="scope">
                        <el-switch v-model="scope.row.mg_state" @change="userStateChanged(scope.row)" active-color="#49c6b0" inactive-color="#eaedf1"></el-switch>
                    </template>
                </el-table-column>
                <el-table-column label="操作" width="160px">
                    <template slot-scope="scope">
                        <!-- 修改按钮 -->
                        <el-tooltip effect="light" content="编辑" placement="top" :enterable="false">
                            <el-button type="primary" icon="el-icon-edit" circle size="mini" @click="showEditDialog(scope.row.id)"></el-button>
                        </el-tooltip>
                        <!-- 删除按钮 -->
                        <el-tooltip effect="light" content="删除" placement="top" :enterable="false">
                            <el-button type="danger" icon="el-icon-delete" circle size="mini" @click="removeUserById(scope.row.id)"></el-button>
                        </el-tooltip>
                        <!-- 分配角色按钮 -->
                        <el-tooltip effect="light" content="分配角色" placement="top" :enterable="false">
                            <el-button type="warning" icon="el-icon-setting" circle size="mini" @click="showSetRoleDialog(scope.row)"></el-button>
                        </el-tooltip>
                    </template>
                </el-table-column>
            </el-table>
            <!-- 分页区域 -->
            <el-pagination
                    @size-change="handleSizeChange"
                    @current-change="handleCurrentChange"
                    :current-page="queryInfo.pagenum"
                    :page-sizes="[1, 2, 5, 10]"
                    :page-size="queryInfo.pagesize"
                    layout="total, sizes, prev, pager, next, jumper"
                    :total="total">
            </el-pagination>
        </el-card>
        <!-- 添加用户对话框 -->
        <el-dialog title="添加用户" :visible.sync="addDialogVisible" width="50%" @close="addDialogClosed">
            <!-- 内容区域 -->
            <el-form status-icon :model="addForm" :rules="addFormRules" ref="addFormRef" label-width="80px">
                <el-form-item label="用户名" prop="username">
                    <el-input v-model="addForm.username"></el-input>
                </el-form-item>
                <el-form-item label="密码" prop="password">
                    <el-input type="password" v-model="addForm.password"></el-input>
                </el-form-item>
                <el-form-item label="确认密码" prop="passwordCheck">
                    <el-input type="password" v-model="addForm.passwordCheck"></el-input>
                </el-form-item>
                <el-form-item label="邮箱" prop="email">
                    <el-input v-model="addForm.email"></el-input>
                </el-form-item>
                <el-form-item label="手机" prop="mobile">
                    <el-input v-model="addForm.mobile"></el-input>
                </el-form-item>
            </el-form>
            <!-- 底部区域 -->
            <span slot="footer" class="dialog-footer">
                <el-button @click="addDialogVisible=false">取 消</el-button>
                <el-button type="primary" @click="addUser">确 定</el-button>
            </span>
        </el-dialog>
        <!-- 修改用户对话框 -->
        <el-dialog title="修改用户" :visible.sync="editDialogVisible" width="50%" @close="editDialogClosed">
            <el-form :model="editForm" :rules="editFormRules" ref="editFormRef" label-width="80px">
                <el-form-item label="用户名" prop="username">
                    <el-input v-model="editForm.username" disabled></el-input>
                </el-form-item>
                <el-form-item label="邮箱" prop="email">
                    <el-input v-model="editForm.email"></el-input>
                </el-form-item>
                <el-form-item label="手机" prop="mobile">
                    <el-input v-model="editForm.mobile"></el-input>
                </el-form-item>
            </el-form>
            <span slot="footer" class="dialog-footer">
                <el-button @click="editDialogVisible = false">取 消</el-button>
                <el-button type="primary" @click="editUser">确 定</el-button>
            </span>
        </el-dialog>
        <!-- 分配角色对话框-->
        <el-dialog title="分配角色" :visible.sync="setRoleDialogVisible" width="50%" @close="setRoleDialogClosed">
            <div>
                <p>用户：{{userInfo.username}}</p>
                <p>角色：{{userInfo.role_name}}</p>
            </div>
            <el-select v-model="selectedRoleId" placeholder="请选择">
                <el-option v-for="item in rolesList" :key="item.id" :label="item.roleName" :value="item.id">
                </el-option>
            </el-select>
            <span slot="footer" class="dialog-footer">
                <el-button @click="setRoleDialogVisible = false">取 消</el-button>
                <el-button type="primary" @click="saveRoleInfo">确 定</el-button>
            </span>
        </el-dialog>
    </div>
</template>

<script>
export default {
  data () {
    // 确认密码
    var checkPassword2 = (rule, value, cb) => {
      if (value !== this.addForm.password) {
        cb(new Error('两次输入密码不一致!'))
      } else {
        return cb()
      }
    }
    // 验证邮箱的规则
    var checkEmail = (rule, value, cb) => {
      const regEmail = /^([a-zA-Z0-9_-])+@([a-zA-Z0-9_-])+(\.[a-zA-Z0-9_-])+/
      if (regEmail.test(value)) {
        return cb()
      }
      cb(new Error('邮箱格式不正确'))
    }
    // 验证手机号的规则
    const checkMobile = (rule, value, cb) => {
      const regMobile = /^(0|86|17951)?(13[0-9]|15[012356789]|17[678]|18[0-9]|14[57])[0-9]{8}$/
      if (regMobile.test(value)) {
        return cb()
      }
      cb(new Error('请输入正确的手机号'))
    }
    return {
      // 获取用户列表的参数对象
      queryInfo: {
        query: '',
        // 当前页数
        pagenum: 1,
        // 当前每页显示多少数据
        pagesize: 2
      },
      // 用户列表
      userlist: [],
      // 数据总量
      total: 0,
      // 控制添加用户对话框的显示与隐藏
      addDialogVisible: false,
      // 添加用户的表单数据
      addForm: {
        username: '',
        password: '',
        email: '',
        mobile: '',
        passwordCheck: ''
      },
      // addForm: {
      //   username: 'xixi',
      //   password: '123456',
      //   email: '123@163.com',
      //   mobile: '17826833736',
      //   passwordCheck: '123456'
      // },
      // 添加表单的验证规则对象
      addFormRules: {
        username: [
          { required: true, message: '请输入用户邮箱', trigger: 'blur' },
          { min: 3, max: 10, message: '长度在3到10个字符之间', trigger: 'blur' }
        ],
        password: [
          { required: true, message: '请输入密码', trigger: 'blur' },
          { min: 6, max: 15, message: '长度在6到15个字符之间', trigger: 'blur' }
        ],
        passwordCheck: [
          { required: true, message: '请再次输入密码', trigger: 'blur' },
          { validator: checkPassword2, trigger: 'blur' }
        ],
        email: [
          { required: false, message: '请输入邮箱', trigger: 'blur' },
          { validator: checkEmail, trigger: 'blur' }
        ],
        mobile: [
          { required: false, message: '请输入联系方式', trigger: 'blur' },
          { validator: checkMobile, trigger: 'blur' }
        ]
      },
      // 控制修改用户对话框的显示与隐藏
      editDialogVisible: false,
      // 点击编辑按钮，查询到的用户信息
      editForm: {},
      // 编辑表单的验证规则对象
      editFormRules: {
        email: [
          { required: false, message: '请输入邮箱', trigger: 'blur' },
          { validator: checkEmail, trigger: 'blur' }
        ],
        mobile: [
          { required: false, message: '请输入联系方式', trigger: 'blur' },
          { validator: checkMobile, trigger: 'blur' }
        ]
      },
      // 控制分配角色对话框的显示与隐藏
      setRoleDialogVisible: false,
      // 当前被分配角色的用户信息
      userInfo: {},
      // 所有角色的数据列表
      rolesList: [],
      // 分配角色对话框中被选中的角色id
      selectedRoleId: ''
    }
  },
  created () {
    this.getUserList()
  },
  methods: {
    // 获取用户列表
    async getUserList () {
      const { data: res } = await this.$http.get('users', { params: this.queryInfo })
      if (res.meta.status !== 200) return this.$message.error(res.meta.msg)
      this.userlist = res.data.users
      this.total = res.data.total
    },
    // 监听 每页显示条数 改变的事件
    handleSizeChange (newSize) {
      // console.log(newSize)
      this.queryInfo.pagesize = newSize
      this.getUserList()
    },
    // 监听 页码值 改变的事件
    handleCurrentChange (newPage) {
      // console.log(newPage)
      this.queryInfo.pagenum = newPage
      this.getUserList()
    },
    // 监听 用户状态 改变事件
    async userStateChanged (userInfo) {
      // console.log(userInfo)
      const { data: res } = await this.$http.put(`users/${userInfo.id}/state/${userInfo.mg_state}`)
      if (res.meta.status !== 200) {
        userInfo.mg_state = !userInfo.mg_state
        return this.$message.error(res.meta.msg)
      }
      this.$message.success(res.meta.msg)
    },
    // 监听 添加用户窗口关闭 事件，清空表单
    addDialogClosed () {
      this.$refs.addFormRef.resetFields()
    },
    // 添加新用户
    addUser () {
      this.$refs.addFormRef.validate(async valid => {
        if (!valid) return
        delete this.addForm.passwordCheck
        const { data: res } = await this.$http.post('users', this.addForm)
        // console.log(res)
        if (res.meta.status !== 201) return this.$message.error(res.meta.msg)
        this.$message.success(res.meta.msg)
        this.addDialogVisible = false
        await this.getUserList()
      })
    },
    // 修改用户表单
    async showEditDialog (id) {
      const { data: res } = await this.$http.get('users/' + id)
      if (res.meta.status !== 200) return this.$message.error(res.meta.msg)
      this.editForm = res.data
      this.editDialogVisible = true
    },
    // 监听 编辑用户窗口关闭 事件，清空表单
    editDialogClosed () {
      this.$refs.editFormRef.resetFields()
    },
    // 提交修改用户信息
    editUser () {
      this.$refs.editFormRef.validate(async valid => {
        if (!valid) return
        const { data: res } = await this.$http.put('users/' + this.editForm.id, {
          email: this.editForm.email,
          mobile: this.editForm.mobile
        })
        console.log(res.meta)
        if (res.meta.status !== 200) return this.$message.error('更新用户信息失败')
        this.editDialogVisible = false
        this.$message.success('更新用户信息成功')
        await this.getUserList()
      })
    },
    // 根据Id删除对应的用户信息
    async removeUserById (id) {
      // 弹框询问用户是否要删除该数据
      const confirmResult = await this.$confirm('此操作将永久删除该用户, 是否继续?', '提示', {
        confirmButtonText: '确定',
        cancelButtonText: '取消',
        type: 'warning'
      }).catch(err => err)
      if (confirmResult !== 'confirm') return this.$message.info('已取消删除')
      const { data: res } = await this.$http.delete('users/' + id)
      if (res.meta.status !== 200) return this.$message.error('删除用户失败')
      this.$message.success('已删除该用户')
      await this.getUserList()
    },
    // 分配角色对话框
    async showSetRoleDialog (userInfo) {
      this.userInfo = userInfo
      // 展示对话框前先获取所有角色列表
      const { data: res } = await this.$http.get('roles')
      if (res.meta.status !== 200) return this.$message.error('获取角色列表失败')
      this.rolesList = res.data
      this.setRoleDialogVisible = true
    },
    // 分配角色对话框 点击确定，保存分配的角色
    async saveRoleInfo () {
      // 若没有选择角色就点击了确定按钮
      if (!this.selectedRoleId) {
        return this.$message.error('请选择要分配的角色')
      }
      const { data: res } = await this.$http.put(`users/${this.userInfo.id}/role`, { rid: this.selectedRoleId })
      console.log(res)
      if (res.meta.status !== 200) return this.$message.error(res.meta.msg)
      this.$message.success('分配角色成功')
      await this.getUserList()
      this.setRoleDialogVisible = false
    },
    // 监听 分配角色对话框 关闭事件，重置已选id和用户信息
    setRoleDialogClosed () {
      this.selectedRoleId = ''
      this.userInfo = ''
    }
  }
}
</script>

<style scoped>

</style>
